Pivotable window construction



D. wlERsMA ET AL A 1,970,351

PIVOTABLE WINDOW CONSTRUCTION Patented` ug'. 4, 1934 j PIVOTABLE WINDOW CONSTRUCTION Gerrit Durks Wiersma, Almelo, and Douwe Durks Wiersma, Apeldoorn, Netherlands, assignors to Naamlooze Vennootschap Technische Handelmaatschappij voor `Raalnconstructies, Almelo, Netherlands Application February 23, 1933, Serial No. 658,176 In the Netherlands yAugust 18, 193.2`

2 Claims. (Cl. 20-42) In modern construction of houses, schools and in which the hinges have been shifted until vthey other buildings it is usual to use windows, Which touch the abutments and the window vhas been preferably are pivotable outwards, since such opened farther; Windows have the advantage that they may be Fig.i3 is a vertical cross section of the window 5 opened without disturbing furniture, Vplants or and the frame on a larger scale;` 60v the like that may be on the window sill or the Fig 41s a perspective viewof a slide rmember window seat. There is however the drawback with apivot pin, and f v thatthe exterior ofthe windowv panes cannot be Fig. 5 is across section of the supportl for the cleaned without using ladders for the higher window ona still larger scale. 'Y

panes. Therefore it is often necessary to have the The window l is, by means of hinges 2 and 3, Ll5 windows cleaned by professional window-cleanpivotably arranged in its frame, which consists ers, which causes periodically recurring expense. of the upper sill 4, the posts 5 and 6 and the The object of the invention is to remove this lower sill 7. The hinges are pivotable on the drawback by means of such an arrangement that pivot pins 8 and 9, which are xed to, or form ll the exterior of the glass panes may be brought one with slide members 10 and 11. These slide 7U within the reach of persons who are inside the members may be shifted along guides 12 and 13, house or the building. which are secured to the lintel and sill.

This object is attained by the window Construc- At the outer side the guide 12 is provided with tionA according to the invention by making the a downwardly extending part or edge 14 and is 201i hinges of the window slidable. After opening the countersunk over a small distance into the upper 75' window and sliding the hinges it is possible to sill, so that rainewater follows the edge 14 and turn the outside of the window towards the inside, penetration of the rain-water is prevented. The after which one can clean the exterior of the pane. guide 13 has a dat underside without a vertical With a window which is pivotable 0n a Vertical edge at the outer side, so that no rain-water can 26 axis the hinge-pins may, according t0 the invencollect in this guide either, as it would inimech- 80 tion, be fixed to, or may be formed in one with ately run out 310mg the lowersin sliding members, which are slidable along guides The Slide members 10 and 11, one of which is xed to or into the lintel and sill. According to represented in Fig 4, contain a foot 15, which the invention the same construction may also be forms one part with a raised part 16 and a bleek soi applied to a tumbling window, which is pvotable 17 whieh carries the hinge pin 9. The guides 12 85 on a horizontal aXS; the guides for the Slldmg and 13 are provided with a vertical web 18, which members ae Case Xed to or into the engages around the raised part 6 Window f ame posts; This is made possible by a slot between the Acordme t0 the {n1/@HUGH 011e 0f the Slldmg" raised peri; 16 and the bleek 17, this slot having a members 0r both Slldmg members may be faS- Width corresponding with the thickness of the 90 tened in order to prevent any undeslred move- Vertical web 18 ment of the Wmdow', In its normal position, i. e. in the position ac- In the case of a window, which 1s pivotable on @Ording to Fig 1, the upper hinge may be fas a' Vertical axis a' mlpport may be arranged om the tened by means of a pin 19, which is introduced "o lower .Sm which 1S adapted to zo-.operat Wlth a' from the inner side of the Window through the gulde m the bOmOm rau of; the Wmdm Eels order upper sill 4, the guide 12 and the slide member l0. to Suppor the Wmdw on .1 s movmg ng In this position of the hinges the window may be According to the mventionstops or abutments Opened in the normal Way (as indicated by a 5 lyhgsrmnged Wmm hmm me movement of fun line in Fig. 2), es the weight of the window keeps the lower hinge in contact with the post 5. The drawl-ngs Show -by Way of example a' femm A support 20 is secured to the lower sill, as repof Cqnstrucmon of a' Wmdow accordmg to the mresented in Fig 5 This support consists of sta- Velllg drawings: tionary cylinder 21 in which a second cylinder is 50. Fig. 1 is an outside View of the window and its slid-able Some Play, S0 that the 1atte1-may 105 frame. make a limited tipplng movement. The cyllnder Figfz is a horizontal cross section of the win- 22 is slightly narrowed at its upper end t0 a diamdow and the frame in which the window is repreeter, Which iS Somewhat smaller than the diamsented ina partly opened position with the hinges eter of a ball 23 arranged 1n this cylinder. A in their normal place, and in a second position spring 24 urges the ball 1n upward dlrection, so 110 that the parts normally are in the position according to Fig. 5.

A guide 26 in the form of a channel is arranged in the bottom rail 25 of the window. In one place the sides of the guide and the corresponding part of the wood of the window are cut away; so :that

when opening the window this recess -is moved over the ball 23. t If it is desired to clean the outer face of the' window, such face is turned towardslthe inside of the room in the following Way: l

The window is opened until the guide26 in its in the upper and lower sill; l During this'movement of the hinges the guide 2e -rouows the bau 23 of the support 20; in this way the weight of.;

aimed at may be attained in a very practical way by means of a simple and cheap construction, which is easy toapply. The small extra expenses for the guides and the slide members are very soon compensatedby the fact that no periodically recurring costs for window cleaners are necessary. Moreover the arrangement is such,

vthat a draught-free closing of the window is possible, while the arrangement of the hinges at the voutside do not cause any danger of house breaking, as after removal of the hinges the web 28 K @-.which engages' the post 5 prevents opening of the underside bears upon the support 20;. Thereupon j the pin 19 is pulled out of the upper hinges and both hinges are slid along the guides12 and 13-y until they come into contact with abutments 27 window by anyone unauthorized.

'A"construction which corresponds essentially with the described construction may also be applied to windows pivoting on a horizontal axis.

We `c lai-m: f "l: A window construction comprising sliding hinges,slides along the lintel and the sill having grooves to contain the sliding hinges, pins for securing the hingesofwindow against the `window frame,` a support on the sill toacilitate the sliding vmovement ofi-the hinges'the window having a groove in: its lower part to lit onto the support. A window constructionas'claimed in claim 1 inwhich the, support vis a vertical cylindrical piece containing a coil spring and a ball. L l

GERRIT DURKS "WIERSMA f 1 DOUWE DURKSWIERSMA.v 

